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Finding the Fourth Proportional to 2,762.65, 3,812.38 and 1,503.73

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Solution

The fourth proportional to 2,762.65, 3,812.38 and 1,503.73 is: 2,075.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,762.65 : 3,812.38 = 1,503.73 : x
  2. Step 2: Convert to fraction form
    2,762.65/3,812.38 = 1,503.73/x
  3. Step 3: Cross multiply
    2,762.65x = 3,812.38 × 1,503.73
  4. Step 4: Simplify right side
    2,762.65x = 5,732,790.18
  5. Step 5: Solve for x
    x = 5,732,790.18/2,762.65
  6. Step 6: Final answer
    x = 2,075.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.